Verizon’s FiOS internet service is, for all intents and purposes, uncapped. The ISP sells FiOS as clearly superior to other services, and part of the pitch is unlimited bandwidth. Some customers who have been taking Verizon at its word are starting to hear from the fiber internet provider. The gist of the letter being sent to customers is that they had better reduce their usage or risk disconnection.

Plenty of ISPs technically have uncapped service, but there’s the little matter of the fine print. Terms of Service (TOS) and Acceptable Usage Policies (AUP) usually give a service provider the ability to come after users who use huge amounts of bandwidth. It’s the same for mobile data users on most carriers with grandfathered unlimited plans.

In this case Verizon FiOS is sending out letters to 45 of its roughly 5.8 million subscribers. Clearly a very small percentage, so they must have really been cranking away on their connections to attract Verizon’s attention. The amount of bandwidth used varies, but it looks like all the customers receiving letters have been pulling over 10TB per month. One users claims he has exceeded 77TB in one 30 day period.

Verizon’s letter informs the affected users that they must decrease their usage to acceptable levels (under 10TB) by September 1st or they will be disconnected on September 18th. According to Verizon, these users are negatively impacting network performance in their areas, which is against the TOS and AUP. It goes on to suggest a business line, which offers a little more leeway in bandwidth usage.